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Patented Mar. 26, 1889.

. WE/rafa J.. H. RUSS. GAS REGULATOR.

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f f f i, UNITED STATESPATENT OFFICEe JAMES H. RUSS, OF PROVIDENCE, RHODE ISLAND.

GAS-REG U LATO R.

SPECIFICATION forming part of Letters Patent No. 400,363, dated March 26, 1889.

Application filed May 26 1888. Serial No. 275 J155. (No model.)

To all whom, it may concern,.-

Be it known that I, JAMES II. RUSS, of

Providence, in the county of Providence,

State of Rhode Island, have invented a certain new and useful Improvement in Gras- Regulators, of which the following is a description sufficiently full, clear, and exact to enable any person skilled in the art or science to which said invention appertainsto make and use the same, reference being had to the accompanying drawings, forming'part of this specification, in which- Figure l is a vertical section of my improved gas regulator, `certain parts being shown in side elevation, and Fig. 2 a horizontal section taken on line in Fig. l.

Like letters and igures of reference indicate corresponding parts in both the igures of the drawings.

My invention relates to that class of gasregulators which are designed to be placed between the meter and burners to govern or regulate the pressure of the gas delivered to the burners; and it consists in certain novel features, as hereinafter fully set forth and claimed, the object being to produce a simpler, cheaper, and more effective device of this ,character than is now in ordinary use.

The nature and operation of the improvement will be readily understood by all conversant with such matters from the following explanation: l, t

In the drawings,A represents the body of the regulator, B the dome, and C the valve. The body and dome are of the ordinary form and construction, and the dome is seated in y the usual manner in mercury m, contained in an annular groove, o, in the body. A vertically-arranged tube, D, having a head, f, is secured centrally to the bottom of the regulator within the body A, said tube being provided with a seat, d, adapted to receive and seat the valve C. A short vertically-arranged pipe,.E, is inserted centrally in the head f of the tube D, and inserted in said pipe there is a rod, H, which connects the valve C with the dome B in the usual manner. The valve is provided at its lower end with a beveled annular flange, z, which lits the seat d tightly when said valve is closed or drawn upward by the dome into said seat. A series of vertically-arranged grooves, t, are formed in the sides of the valve C, said grooves being larger and deeper at their upper than at their lower ends, or gradually tapering from their upper to their lower ends, both in width and depth, the lower ends of the grooves terminating in the upper side of the iiange z and near its periphery. An inlet-opening, K, is formed in the bottom of the body A, through which the gas passes into the lower portion of the tube D, and there is also an outlet-opening, L, in said body, through which the gas passes to the burners, it being understood that suitable pipes are to be inserted in said openings for connecting the regulator with the meter and burners. The object of the pipe E is to prevent a regulator from being used for a larger number of burners than it is intended to supply. For instance, if the regulator is sold to supply twenty-tive four-foot burners, a pipe E is inserted in the tube D, of suitable capacity for that number of burners, and no more, thus preventing the regulator from being used by the purchasers for fifty burners without changing said pipe for one of double capacity, which cannot be readily done by the user.

In the use of my improvement the regulator is first adjusted for one or two burners, the

valve C being nearly closed, so that just gas enough will pass through it to supply that number of burners. If, now, more burners are lighted, the pressure will be reduced within the body A accordingly, thereby causing the dome and valve t-o fall, and opening the valve in proportion to the number of burners being used. As the grooves t are tapering and form ducts through which the gas passes on its way to the dome, it will be obvious that the 'volume of gas passing to the burners will be greatly increased by a very slight fall of the valve, and vice versa, the grooves rendering the valve very sensitive and enabling alarge number of burners to be suddenly turned on orshut o, as the case may be, without materially affecting the size or quality of the lights.

I-Iaving thus explained my invent-ion, what I claim is I The combination of a gas-regulator body having a screw-threaded socket on the inner face of its bottom and a screw-threaded inletopening of smallerdiameter than said socket in the head thereof, a valve within said tube, and a valve-rod connecting Said valve with 1o the dome, substantially as set forth.

JAMES H. RUSS.

Witnesses:

O. M. SHAW, E. M. SPINNEY. 

